Question

What do you mean by coherent source??

Answer 1

Question : What do you mean by coherent source?

Answer : In physics, the word coherent means having a constant phase relationship.

Coherent source are the one which have exactly same frequency and have constant phase difference.

Their are two types of coherence :

1) Spatial coherence (transverse)

2) temporal coherence (longitudinal)

Most of the sources of light such as bulb, LED, sun, candle, etc are incoherent sources of light , i.e, they have different frequencies.

Answer 2

Explanation:

♥ Two sources to produce an interference that is stable over time , if the light has a phase relationship that does not change with time

♥ Coherent sources : The phase must be well defined and constant when waves from coherent sources meet stable interference can occur

ex: laser light - produced by cooperative behaviour of atoms

hope it helps u......❣️